Hub.



No. 797,127. PATENTBD AUG. 15, 1905.

' B. H. LAMPE,

HUB.

APPLIOATION FILED JULY 7. 1904.

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ERNEST HENRY LAB/IPE, @ll SlflCt/ENS P'Ulhll, WTSCONSIN.

Specification of Letters Ilatent.

Patented Aug. l5, 1905.

Application filed July '7, 1904. Serial No. 215,652.

To 1f/ZZ whom 'llt 'ntfty/ concern:

Be it known that l, lihmns'r HENRY lnnuruc, a citizen of the UnitedStates, residing at Stevens Point, in the county of lortage and State ofWisconsin, have invented certain new and useful Improvements in Hubs, ofwhich the following is a specification.

My invention relates to improvements in hubs for wheels, and theespecial object of said improvements is to provide a hub that can heeconomically manufactured, that will be ballbearing, easily-lubricated,dust-lnoof, durable, in which the wear can be compensated for, and whichwill he free from vibration, so 'that it is especially adapted for useas in wheels for automobiles and other heavy vehicles where there isunusual strain and jar on the wheels.

Having the aforegoing and other objects of general utility in view, lfhave designed the hub hereinafter described in detail and which is fullyillustrated in a preferred form in the accompanying drawings, which forma part of this application, and in which Figure lis a vertical sectiontaken through 'my improved hub and showing' its attachment to an axle.Fig. 2 is an elevational view of said hub, taken from the inner side ofthe wheel. Fig. 3 is a vertical section through the outer or mainhub-shell, and Fig. 4 is a view in elevation of the inner hub-shell andother parts adapted to lit within the shell shown in lfig. 3.

Referring to the drawings in detail, c represents the rounded orsemispherical portion of the ou ter shell; a', a huh extension formedwith a cylindrical socket or recess (t5.

airepresen ts radial extensions each of which is formed with a recessas, adapted to receive the extension c of the spokes fr, and extendingtransversely therethrough are rivet-holes a".

a is a hub extension on the inner side of the sheel a, which isinternally threaded, as at UX., and a is a semispherical chamber in theinside of the shell, all of said parts being formed in an integralcasting or unitary structure.

t represents the inner portion of the hub that is complementary to thepart a, and the same is formed with an extension provided with externalthreads be, which are adapted to engage the female threads c7 of theportion c of the outer shell. The portion 7; is formed with an internalsemispherical cham ber which, with the corresponding chamber a in theshell a, forms a socket or seat for the sphere or ball c. This sphere isbored with a left-hand female thread d, into which is screwed thecorrespond ngly male-threaded portion d' of the axle (Z.

ln the recess a, formed in the shell a, is insorted a cap f, rneferablymade of brass or of any suitable metal, which is adapted to receive andfurnish a bearing for the outer end (Z2 of the shaft (l, and through asuitable opening in the center of the hub-shell inserted a sleeve alsoof brass or other suitable metal, which :furnishes a lFurther bearingfor the axle.

then the parts above described are assembled in the manner set forth onan axle d, they are locked in place by a ring le., which is providedwith a set-screw 1', which fixes it on the axle, thus holding the sleevef/ in place and preventing the shell from being unscrewed from the shellfr.

The sphere or ball c is preferably made of brass or other suitableantifrictional metal, and the bearings/"and r/ for the axle l may beequipped with lubricating devices or means, the same being no necessarypart of my invention, and hence are not shown in this connection.

lhc threads on the axle and ball, as well as on the shells (o and arecut so that the parts will not be unserewed by the normal rotation ofthe wheel or hub around the ball and axle.

llt will bc apparent that thc construction and arrangenient abovedescribed are applicable to pulleys and shafts as well as to wheels andaxles, and l therefore do not limit myself in this application to saidconstruction as applied exclusively to wheels; but

lrVhatl claim as new, and desire to obtain by' Letters ljatent, is-

l. in a wheel, a hub composed of two interlitting shells each providedwith a semispherical chamber, and one of said shells provided with arecess adapted to receive the outer end of au axle, and also providedwith radial spokessockets, the other shell provided with a passage foran axle, in combination with an axle and a ball adapted to lie in thechamber formed by said shells and secured on said axle.

2. ln a hub, a shell-section formed with a semispherical chamber, and acylindrical recess communicating with said chamber, and having aninternally-threaded portion substantially as described, a com pleinentary shellsection formed with a semispherical chamber adapted toregister with the corresponding chamber of the lirst-uamed shell, andprovided with a threaded portion adapted to engage the threaded portionof the first-named sheli, and also provided with an opening for an axle,bearing-boxes arranged respectively in the recess in the iirst-namedshell and in the opening in the second-named shell, and an axle arrangedin said hearing-looxes,` a hall secured on said axle and means forlocking said axle against longitudinal movement in Said shells.

3. In a wheel, a huh composed of two intertting parts adapted to hesecured together, each of said parts formed with a semisphericalinternal chamber, and one of said parte having a spindle-bearingtherein, a metal sphere arranged in said chambers and provided with athreaded bore therethrough, in combination with an axle-spindle having athreaded portion engaging the threaded bore of said sphere.

4. In a wheel, a hub composed of two parte

